sheriff: Disable flaky test

PasswordManagerBrowserTest.PlaceholderPasswordOverwritten

TBR=dvadym@chromium.org
TBR=jdoerrie@chromium.org
TBR=kolos@chromium.org
TBR=mamir@chromium.org
TBR=vasilii@chromium.org

Bug: 1116886
Change-Id: I24b11647678d1cecefacc98dac6455f2e001399a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2359589Reviewed-by: Fergus Dall <sidereal@google.com>
Commit-Queue: Fergus Dall <sidereal@google.com>
Cr-Commit-Position: refs/heads/master@{#798509}

chrome/browser/password_manager/password_manager_browsertest.cc

@@ -1275,8 +1275,10 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
 
 // If there is a username and password with prefilled values, overwrite the
 // password if the username looks like a placeholder value
+
+// TODO(crbug.com/1116886) Renable this test
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
-                       PlaceholderPasswordOverwritten) {
+                       DISABLED_PlaceholderPasswordOverwritten) {
   // Save a credential to the password store.
   scoped_refptr<password_manager::TestPasswordStore> password_store =
       static_cast<password_manager::TestPasswordStore*>(